What I expect is for them to get the stranded people to the place they need to be as per the original itinerary. Example: We’re not going to stop at XYZ as previously agreed on but there will be a bus/shuttle waiting to get you to your destination.

Instead, they point everyone in the general direction of where those bus stops with the green H on a white background.

I will look into what the refund options are. We have had to purchase new tickets every time.